TAMPA — Yankees reliever Adam Ottavino has a new delivery and an improved off-speed pitch to sure up issues that somewhat soured an otherwise sensational first season in pinstripes.

His quicker delivery, which includes no more pre-pitch glove tapping, could lead to better control, fewer walks and opponents running on him less.

His refined changeup could change his reputation of being a right-hander who has a wipeout slider to unleash on right-handed hitters but no quality pitch to get lefties out consistently.

So far this spring, the new-and-improved Ottavino has been sensational against righties and lefties, and he was very good again Sunday facing two left-handers while working a 1-2-3 fifth inning in a 1-0 Yankees’ split-squad win over the Atlanta Braves at Steinbrenner Field.

Ottavino retired switch-hitter Johan Camargo on a groundball to second, righty Adeiny Hechavarria on a strikeout looking and lefty Yonder Alonso on a popup to short.

For the spring, Ottavino has pitched four scoreless innings, allowing one hit and one walk while whiffing five in four outings.

“The changeup has become a pitch for him,” Yankees manager Aaron Boone said of Ottavino, a 34-year-old who is in the second season of a three-year, $27-million contract. “It’s something you’re seeing a lot to left-handed hitters. He’s had really good results with it in the bullpen, and he’s taking it into the game.

“I feel like Otto is throwing the ball really well.”

A year ago, Ottavino pitched to a career-best 1.90 ERA over 73 outings with 88 strikeouts in 66 1/3 innings, but that included a 4.50 ERA in September when he walked four over seven innings. Then in October, he posted an 8.10 ERA over eight outings with three walks over 3 1/3 innings, which led to the native New Yorker being booed at Yankee Stadium.